SY58040U Datasheet | Micrel Semiconductor

Micrel, Inc. ULTRA PRECISION 4×4 CML SWITCH WITH INTERNAL I/O TERMINATION Precision ESd Y5g8e0®40U SY58040U Features - Provides crosspoint switching between any input pair to any output pair - Ultra-low jitter design: - 67fs RMS phase jitter (typ) - Guaranteed AC performance over temperature and voltage: - DC to >5Gbps throughput - <350ps propagation delay - <60ps tr / tf times - <25ps skew (output-to-output) - Unique, patent-pending, channel-to-channel isolation design provides superior crosstalk performance - Unique, patent-pending, 50Ω input termination extended CMVR, and VT pin accepts DC- and ACcoupled differential inputs - 400m V CML output swing - 50Ω source terminated outputs minimize round-trip reflections - Power supply 2.5V ±5% or 3.3V ±10% - - 40°C to +85°C temperature range - Available in 44-pin (7mm × 7mm) QFN package - Pb-Free green package Precision Edge® DESCRIPTION The SY58040U is a low jitter, low skew, high-speed 4×4 crosspoint switch optimized for precision tele and enterprise server/storage distribution applications. The SY58040U distributes clock frequencies from DC to 4GHz, and data rates to 5Gbps guaranteed over temperature and voltage. The SY58040U differential input includes Micrel’s unique, 3-pin input termination architecture that directly interfaces to any differential signal (AC- or DC-coupled) as small as 100m V (200m Vpp) without any level shifting or termination resistor networks in the signal path. The outputs are 50Ω source-terminated CML with extremely fast rise/fall times guaranteed to be less than 60ps. The SY58040U Features a patent-pending isolation design that significantly improves on channel-to-channel crosstalk performance. The SY58040U operates from a 2.5V ±5% or 3.3V ±10% supply and is guaranteed over the full industrial temperature range of - 40°C to +85°C. The SY58040U is part of Micrel’s high-speed, Precision Edge® product line. Datasheets and support documentation can be found on Micrel’s web site at:...